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    • 65. 发明授权
    • Color correction apparatus and method
    • 颜色校正装置及方法
    • US07720280B2
    • 2010-05-18
    • US11591598
    • 2006-11-02
    • Sung-su KimDu-sik ParkChang-yeong Kim
    • Sung-su KimDu-sik ParkChang-yeong Kim
    • G06K9/00
    • H04N1/62
    • A color correction apparatus and method are provided. The color correction apparatus includes: a chromatic region determination module determining a first chromatic region to which an input pixel constituting an input image belongs and a second chromatic region neighboring the first chromatic region on a basis of specified chromatic region division information; a polynomial regression operation module performing polynomial regression on the first chromatic region and the second chromatic region; and a blending module providing corrected pixel information for the input pixel by giving weight values to results of the polynomial regression on the first chromatic region and the second chromatic region. The color correction method includes: determining the first and second chromatic regions; performing polynomial regression on the first and second chromatic regions; and providing corrected pixel information for the input pixel by giving weight values to results of the polynomial regression on the first and second chromatic regions.
    • 提供了一种颜色校正装置和方法。 色彩校正装置包括:彩色区域确定模块,根据指定的色区分割信息确定构成输入图像的输入像素所属的第一色区域和与第一色区域相邻的第二色区域; 多项式回归运算模块,对所述第一色区域和所述第二色区域进行多项式回归; 以及混合模块,通过对第一色区域和第二色区域上的多项式回归的结果给出权重值,为输入像素提供校正像素信息。 颜色校正方法包括:确定第一和第二彩色区域; 在第一和第二彩色区域执行多项式回归; 以及通过对第一和第二彩色区域上的多项式回归的结果给出权重值来为输入像素提供校正像素信息。
    • 66. 发明申请
    • Method and apparatus for generating user preference data regarding color characteristic of image and method and apparatus for converting image color preference using the method and apparatus
    • 用于生成关于图像的颜色特性的用户偏好数据的方法和装置,以及使用该方法和装置转换图像颜色偏好的方法和装置
    • US20080219548A1
    • 2008-09-11
    • US11892400
    • 2007-08-22
    • Young-sik HuhDu-sik ParkSeong-deok LeeKi-won YooWon-hee ChoiSang-kyun Kim
    • Young-sik HuhDu-sik ParkSeong-deok LeeKi-won YooWon-hee ChoiSang-kyun Kim
    • G06K9/36
    • H04N5/57H04N9/64H04N9/68H04N9/73H04N21/4318H04N21/4854H04N21/84
    • A method and apparatus for generating user preference data regarding the color characteristic of an image and a method and apparatus for converting image color preference using the method and apparatus is provided. The method for generating user preference data comprises (a) obtaining an image color characteristic value of a preference image and a reference image, (b) generating {preference value, reference value} which corresponds to a pair of the preference value and the reference value, and (c) generating the pair {preference value, reference value} as preference meta-data having at least one feature block. The method for converting image color preference comprises calculating a color characteristic value with respect to an input image, generating preference meta-data having at least one feature block, the feature block comprising a block header including a feature identifier corresponding to information identifying a color characteristic and at least one feature descriptor including the preference value and the reference value, obtaining a color characteristic value with respect to the input image using the calculated color characteristic value of the input image and the color preference data, and converting the color characteristic of the input image so that the input image has the obtained color characteristic value.
    • 提供一种用于生成关于图像的颜色特性的用户偏好数据的方法和装置,以及使用该方法和装置转换图像颜色偏好的方法和装置。 用于生成用户偏好数据的方法包括:(a)获得偏好图像和参考图像的图像颜色特征值,(b)生成对应于一对偏好值和参考值的{偏好值,参考值} ,和(c)生成具有至少一个特征块的偏好元数据对{偏好值,参考值}。 用于转换图像颜色偏好的方法包括计算相对于输入图像的颜色特征值,生成具有至少一个特征块的偏好元数据,所述特征块包括块标题,所述块标题包括与识别颜色特征的信息相对应的特征标识符 以及包括偏好值和参考值的至少一个特征描述符,使用所计算的输入图像的颜色特征值和颜色偏好数据获得关于输入图像的颜色特征值,并且转换输入的颜色特性 使得输入图像具有获得的颜色特征值。
    • 67. 发明申请
    • Apparatus and method for ambient light adaptive color correction
    • 环境光自适应色彩校正装置及方法
    • US20080165292A1
    • 2008-07-10
    • US11878783
    • 2007-07-26
    • Han BingDu-sik Park
    • Han BingDu-sik Park
    • H04N5/64
    • H04N9/3194H04N9/3182
    • An ambient light adaptive color correction system and method are provided in the present invention. Firstly, a color information sensor measures color information of at least black and white reference images on a projector plane with influence of ambient light. Then a color correction information calculator calculates color correction information for color appearance matching and gamut mapping based on the measured color information and a projector profile. And after pre-calculation, an image data correction unit processes an input image according to the color correction information to produce a corrected-color image to be outputted to the projector. Accordingly, the output image displayed on the projection plane with influence of ambient light will have a close color appearance to that in the dark room.
    • 本发明提供环境光自适应色彩校正系统和方法。 首先,颜色信息传感器在环境光的影响下,在投影仪平面上测量至少黑白参考图像的颜色信息。 然后,颜色校正信息计算器基于测量的颜色信息和投影仪轮廓来计算用于颜色外观匹配和色域映射的颜色校正信息。 并且在预先计算之后,图像数据校正单元根据颜色校正信息处理输入图像,以产生要输出到投影仪的校正彩色图像。 因此,在环境光影响下在投影平面上显示的输出图像将具有与暗室中的相似的外观。